TY - RPRT TI - The Adherence of porcelain enamel to aluminum: progress report May 1, 1967 through July 31, 1968 AU - Gugeler, Albert L PY - 1968 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS RPT 9901 DO - 10.6028/NBS.RPT.9901 ER -